(BC) retained the lead (B) and mercury (C) in the brains of newborns to identify the concentration of inorganic mercury or lead, is injected into the yolk sac, 6-ED.
(Bc) retained the lead (B) and mercury (C) in the brains of newborns. Found concentrations of lead, mercury, inorganic. Or injected into the yolk sac of 6-ed.